Relationship and difference between tolerance and dynamic range

Tolerance is related to dynamic range, but not the same thing. As a measure of the brightness of a picture, it can be compared to a ruler. Tolerance means more scales, while dynamic range means how big the span is. Greater tolerance can record rich information, but the picture looks dull, but there is a lot of room for adjustment later.

Tolerance refers to the range of scene brightness contrast that the film can correctly accommodate. A film that can correctly record scenes with large brightness contrast is called a film with large tolerance, and vice versa.

Generally speaking, the wider the film, the better. The film with small tolerance often makes the light and dark parts of the scene not correctly reflected in the image, which damages the authenticity of the image. In addition, there are exposure latitude and development tolerance in use, both of which refer to the allowable range in use.

Dynamic range is the ratio of the maximum value to the minimum value of a variable signal (such as sound or light). It can also be expressed by the logarithm (decibel) with the base of 10 or the logarithm with the base of 2.